Cleaning method of water electrolysis device, water electrolysis device and readable storage medium

Abstract

The invention discloses a cleaning method of an electrolyzed water device, at least an anode of the electrolyzed water device adopts a conductive diamond electrode, the electrolyzed water device is used for manufacturing electrolyzed water spray with high oxidation potential, and if the absolute value of the oxidation potential value of the electrolyzed water spray is detected to be smaller than a preset oxidation potential early warning value, the electrolyzed water spray is cleaned. And if not, cleaning the surface of the electrode of the water electrolysis device by using an acidic aqueous solution. According to the invention, the water electrolysis device is maintained and cleaned by using the acidic aqueous solution, so that the defects that the high oxidation potential of instantly manufactured electrolyzed water is reduced and the biological functions of killing microorganisms, resisting inflammation and relieving itching of skin and the like are reduced due to long-time use of the water electrolysis device can be overcome, and the water electrolysis device has a relatively good commercial use value.

Description

Technical Field

[0001] The present invention relates to the field of water electrolysis devices, and in particular to a cleaning method for a water electrolysis device, a water electrolysis device and a readable storage medium. Background Art

[0002] Prior to the present invention, the applicant applied for an invention patent "A New Application of Electrolyzed Water, Application No.: 202310374389.5", which describes an electrolyzed water spray or water jet instantaneously produced by an electrolyzed water device using a conductive diamond electrode, which can produce a non-volatile total oxidation capacity with a high oxidation potential of ≥1200mV (referred to as instantaneously produced high oxidation electrolyzed water), but does not release detectable ozone or oxidizing gases into the surrounding environment. The electrolyzed water instantly produced by the electrolyzed water device can be used to relieve or treat inflammatory diseases of the skin and mucous membranes (itchy skin or red and swollen skin), which is equivalent to having an anti-inflammatory and antipruritic effect on the skin, and in addition, it also has the function of killing microorganisms.

[0003] The applicant found that long-term use of the electrolytic water device would cause the biological function of the electrolytic water produced immediately to decline, that is, the skin anti-inflammatory and antipruritic function and the microbial killing function would gradually decline. This phenomenon made the inventor doubt the commercial use value of the electrolytic water device and its new application (patent name: A new application of electrolytic water, application number: 202310374389.5).

[0004] Therefore, how to provide a method that can prevent the biological function of instant electrolyzed water from decreasing due to long-term use of the electrolyzed water device so that it has better commercial value has become an urgent problem to be solved. Summary of the invention

[0005] The present invention aims to prevent the problem of decreased biological function of instantly produced electrolyzed water caused by long-term use of the water electrolysis device by providing a cleaning method of the water electrolysis device, the water electrolysis device and a readable storage medium.

[0006] A method for cleaning a water electrolysis device, wherein at least the anode of the water electrolysis device adopts a conductive diamond electrode, and the water electrolysis device is used to produce an electrolytic water spray with a high oxidation potential. If the absolute value of the oxidation potential value of the electrolytic water spray is detected to be less than a preset oxidation potential warning value, an acidic aqueous solution is used to clean the electrode surface of the water electrolysis device. By using an acidic aqueous solution for regular cleaning and maintenance, it is prevented that the electrolytic water spray or water spray produced immediately cannot reach a high oxidation potential, thereby preventing the biological function of the electrolytic water from declining.

[0007] Preferably, the acidic aqueous solution includes at least one of acetic acid, hydrochloric acid and sodium citrate; and / or the pH of the acidic aqueous solution is ≤3.5.

[0008] Furthermore, the oxidation potential value of the electrolyzed water spray is detected at a position close to the anode and / or cathode of the electrolysis device.

[0009] Furthermore, the use of an acidic aqueous solution to clean the electrode surface of the water electrolysis device includes placing the acidic aqueous solution into the water electrolysis device, and performing acid washing after swapping the anode and cathode of the water electrolysis device.

[0010] Furthermore, after the cleaning reaches a preset target, the acidic aqueous solution is discarded, and the water electrolysis device is rinsed with tap water or pure water.

[0011] Furthermore, the cleaning achieves a preset target, including that at least one of the usage of the acidic aqueous solution, the cleaning time, or the oxidation potential value at the cathode / anode reaches a preset requirement.

[0012] Preferably, the raw water used to prepare the electrolyzed water spray is ordinary tap water, pure water or weak acid solution.

[0013] Preferably, the electrolyzed water spray contains at least hydroxyl radicals.

[0014] Preferably, the electrolyzed water spray is used for skin anti-inflammatory and antipruritic purposes or to kill microorganisms; and / or the distance between the electrolyzed water spray and the target spraying object is no more than 12 cm.

[0015] Furthermore, the present invention also provides a water electrolysis device, wherein at least the anode of the water electrolysis device adopts a conductive diamond electrode, and the water electrolysis device comprises a control module, and the control module cleans the water electrolysis device according to the above-mentioned cleaning method.

[0016] Furthermore, the control module includes:

[0017] An oxidation potential detection unit, the oxidation potential detection unit is arranged near the anode and / or cathode of the water electrolysis device, and the oxidation potential detection unit is used to detect the oxidation potential value at the anode and / or cathode;

[0018] a communication unit, used for transmitting the oxidation potential value at the anode and / or cathode to a control unit;

[0019] The control unit reminds the user to clean the electrolytic water device if it detects that the absolute value of the oxidation potential value of the electrolytic water spray is less than a preset oxidation potential warning value.

[0020] Furthermore, the present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the cleaning method described above is implemented.

[0021] The present invention uses an acidic aqueous solution to maintain and clean the water electrolysis device, thereby overcoming the decline in the high oxidation potential of the electrolyzed water produced immediately and the decline in biological functions such as killing microorganisms and anti-inflammatory and antipruritic effects on the skin caused by the long-term use of the water electrolysis device, so that it has good commercial use value. Moreover, the present invention can directly pass the cleaning solution into the water electrolysis cell electrode with degraded performance for a period of time without disassembly to restore the performance of the electrode, without disassembling the electrolytic cell, and the cleaning solution will not be destructive to the electrolytic cell and the electrode. DETAILED DESCRIPTION

[0022] The applicant found that when using the electrolytic water device using the conductive diamond electrode, after long-term use, the biological function (skin anti-inflammatory and antipruritic, microbial killing effect) of the electrolytic water produced by the electrolytic water device gradually decreased. When the electrolytic water spray or water spray produced in time was detected, it was found that its conventional disinfection function had no effect, and its total oxidation capacity had no effect, and only the high oxidation potential decreased. Because its conventional disinfection function had no effect, and the total oxidation capacity had no effect, therefore, according to the technical common sense of this area, its conventional electrolytic function was normal, therefore, it was impossible to analyze the reason that it caused the single oxidation potential to decrease. Therefore, the applicant has made a large number of attempts, and has analyzed various approaches such as changing the structure of the electrolytic water device, changing the electrode coating, changing the generator, etc., and has not found a solution.

[0023] Through accidental experiments, acidic substances were added to it, and it was found that the biological functions such as killing microorganisms and anti-inflammatory and antipruritic skin functions were normal and a high oxidation potential could be maintained. Based on this, the applicant solved the problem that had been unsolvable, providing a good foundation for the commercial application of the electrolytic water device.

[0024] The following will provide a detailed introduction through specific embodiments.

[0025] The instruments and devices used in the embodiments of the present invention are as follows:

[0026] 1. Huankai Ozone Colorimeter (Pocket Ozone Colorimeter, Iodine Dissolved Ozone Meter) (Guangdong Huankai Biotechnology Co., Ltd. 0-2.5mg / LⅡS-301): The pocket ozone colorimeter is a handheld LED light source colorimeter that accurately detects ozone in water samples with a measurement range of 0.01-2.50mg / L. [Test Principle] Detection based on the principle of potassium iodide-DPD (N,N-diethyl-p-phenylenediamine) method; [Measurement Range] 0.01-2.50mg / L; [Implementation Standard] Q / HK 080315; [Application Scope] Applicable to the determination of residual ozone concentration in the disinfection process of various water bodies using ozone disinfection, and the display screen directly displays the ozone concentration in the sample in mg / L; [Product Features] Based on the principle of DPD method, the ozone colorimeter clock has a built-in standard curve.

[0027] 2. Portable Oxidation Reduction Potential Meter (Liquid mV Value Detector) (CT-8022 Pen ORP Meter from Shenzhen Kedida Electronics Co., Ltd.): [Test Principle] Oxidation Reduction Potential (ORP) is a comprehensive indicator of medium environmental conditions. [Measurement Range] ±1200mV.

[0028] 3. Ozone gas detector (PR-MG41-O3, Jinan Keyu Electronic Information Technology Co., Ltd.): [Test principle] The detector detects gas by natural diffusion and uses an electrochemical gas sensor. The design, manufacture and verification of this product comply with the following national standards: JJG1077-2012 "Verification Procedure for Ozone Gas Analyzers" [Measurement range] 0.01-10.00ppm.

[0029] 4. Written test of dissolved oxygen meter (Hangzhou Qiwei Instrument Co., Ltd. Xima AR8010): [Test principle] The working principle is that oxygen passes through the diaphragm and is reduced by the working electrode, generating a diffusion current proportional to the oxygen concentration. By measuring this current, the concentration of dissolved oxygen in the water is obtained. [Measurement range] 0-20mg / L.

[0030] 5. Hydrogen Rich Detector (YY400, Henan Rongmeida Environmental Protection Technology Co., Ltd.): [Test Principle] The hydrogen measuring pen is actually an oxidation-reduction potential pen. It converts the hydrogen concentration value according to the oxidation-reduction potential value in the water. [Measurement Range] 0.001-2.400ppm.

[0031] 6. Hydrogen peroxide solution concentration meter (DR803, Dezhou Zhongyuan Electronics Co., Ltd.): [Test principle] Optical refraction method. Since the propagation speed of light in different media is different, when light is emitted from one medium to another, the propagation direction of light changes. This phenomenon is called light refraction. The concentration of each medium is related to the refractive index of light. We can use the critical angle when measuring the refraction of light to determine the concentration of the medium. [Test range] 0-61%.

[0032] 7. Negative oxygen ion detector (IMH01, Beijing Dongchuang Xuxin Measurement and Control Technology Co., Ltd.): [Test principle] The IMHO1 negative ion measuring instrument adopts airflow buffering technology, stable airflow, and reliable ion flow capture. [Test range] Separation rate: 10 ions / cm3, default three-level ion concentration detection range, automatic gear: 0-30000 (pieces / cm3); 0-300000 (1 / cm3); 0-3000000 (pieces / cm3).

[0033] 8. Negative ion water sprayer (made in Japan).

[0034] 9. In the embodiments of the present invention, tap water and a novel water electrolysis device (CN215308550U; https: / / www.deposon.com.cn; https: / / www.deposon.com) are used. The novel water electrolysis device is a small handheld device that uses a diamond anode sheet and utilizes a low-voltage electrolysis method to produce electrolyzed water spray or water jet.

[0035] Specifically, the present invention provides a method for cleaning a water electrolysis device, wherein at least the anode of the water electrolysis device uses a conductive diamond electrode, and the water electrolysis device is used to produce an electrolytic water spray with a high oxidation potential. If the absolute value of the oxidation potential value of the electrolytic water spray is detected to be less than a preset oxidation potential warning value, an acidic aqueous solution is used to clean the electrode surface of the water electrolysis device. A positive oxidation potential is detected near the anode side, and a negative oxidation potential is detected on the cathode side. Therefore, the absolute value of the oxidation potential value of the electrolytic water spray detected can be compared with the preset oxidation potential warning value. The electrolyzed water after electrolysis has a sterilization and disinfection function, especially the electrolytic cell with a conductive diamond electrode as the anode for electrolysis of the incoming water can efficiently produce electrolyzed water with sterilization and disinfection functions; however, the electrolytic cell will be inefficient during long-term use, and the generated electrolyzed water will gradually fail to reach the predetermined oxidation potential, the oxidation potential will decrease, and the sterilization rate will also decrease accordingly after testing. In severe cases, the sterilization effect will be lost, and the electrolysis equipment will lose its due efficacy. At the same time, if the electrolytic cell continues to be turned on and used when it is inefficient, the power consumption will also increase, and it will have a negative impact on the service life of the core component electrode of the electrolytic cell. After long-term experimental research by the applicant, it was found that scale or sediment will gradually form on the surface of the electrode during the electrolysis of tap water. The scale or sediment may contain metal oxides or other substances. The scale may also be adsorbed inside the electrode and is difficult to remove, especially when the water quality is poor and the scale accumulates more, which will seriously affect the electrolysis efficiency of the electrolytic water device. At the same time, the electrode surface is gradually covered with sediment, which will produce a certain degree of corrosion and attenuation, resulting in a decrease in electrolysis efficiency and a decrease in the oxidation potential of the electrolyte. The present invention adopts an acidic aqueous solution for regular cleaning and maintenance to prevent the electrolyzed water spray or water injection produced immediately from failing to reach a high oxidation potential, thereby preventing the biological function of the electrolyzed water from declining.

[0036] In other embodiments, the anode of the water electrolysis device is a conductive diamond electrode, and the cathode of the water electrolysis device is a stainless steel sheet.

[0037] In other embodiments, the cathode of the electrolyzed water may also be a metal electrode including at least one of titanium, platinum, gold, titanium alloy, nickel, palladium, and platinum-ruthenium alloy. In other embodiments, the acidic aqueous solution used to clean the electrolyzed water device may be any one of acetic acid, hydrochloric acid, sodium citrate, or a mixture of at least two of them. As a more preferred option, the pH of the acidic aqueous solution is ≤3.5 to achieve a better pickling effect; the amount of the acidic solution used is at least 50 ml. In addition, the pH value of the acidic aqueous solution is ≥2 to avoid damage to the electrolyzed water device and its electrodes.

[0038] In other embodiments, a cleaning method for an electrolytic water device is provided, wherein the anode of the electrolytic water device uses a conductive diamond electrode, and the cathode uses a stainless steel sheet. The electrolytic water device is used to produce an electrolytic water spray with a high oxidation potential. The oxidation potential value of the electrolytic water spray is detected at the anode and / or cathode of the electrolytic water device. If the absolute value of the oxidation potential value of the electrolytic water spray is detected to be less than a preset oxidation potential warning value, an acidic aqueous solution is injected into a water storage bottle of the electrolytic water device, and the anode and cathode of the electrolytic water device are swapped before acid washing. The oxidation potential detection probe is placed near the anode side or the cathode side. In the present invention, the electrolysis of water products will have a large number of active ions, especially hydroxyl radicals, and hydroxyl radicals are generated in the electrode electrolysis process, so the aggregation of hydroxyl radicals, the closer to the edge of the anode, the higher the concentration, the more accurate the detection of oxidation potential; and on the cathode side, due to oxidation-reduction reactions occurring at the anode and cathode, respectively, wherein the anode undergoes oxidation reaction and the cathode undergoes reduction reaction, water can be reduced to hydrogen, so the cathode detects negative oxidation potential, which is to detect the degree of electrolysis from the degree of reduction reaction, that is, represents the ability and efficiency of electrode electrolysis. Further, after the cleaning reaches the preset target, the acidic aqueous solution is discarded, and the electrolysis device is rinsed with a large amount of tap water or pure water to restore the electrolysis device to a state close to the initial state.

[0039] The present invention also provides a water electrolysis device, wherein at least the anode of the water electrolysis device adopts a conductive diamond electrode and the cathode adopts a stainless steel sheet. The water electrolysis device comprises a control module, which comprises: an oxidation potential detection unit, wherein the oxidation potential detection unit is arranged near the anode and / or cathode of the water electrolysis device, and the oxidation potential detection unit is used to detect the oxidation potential value at the anode and / or cathode; a communication unit, which is used to transmit the oxidation potential value at the anode and / or cathode to the control unit; and a control unit, which reminds a user that the water electrolysis device needs to be cleaned if it is detected that the absolute value of the oxidation potential value of the electrolyzed water spray is less than a preset oxidation potential warning value.

[0040] In other embodiments of the present invention, an alarm unit is further provided. For example, an alarm is activated when the oxidation potential (e.g., 450) detected on the anode side is lower than 500mV; or an alarm is activated when the absolute value of the negative oxidation potential (e.g., -450mV) detected on the cathode side is lower than 500mV. The user is reminded by the alarm unit that the electrolytic water device needs to be cleaned to avoid affecting the disinfection effect of the electrolytic water spray.

[0041] In other embodiments of the present invention, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned cleaning method is implemented.

[0042] In addition, the electrolytic water device preferably uses ordinary tap water, pure water or weak acid solution as raw materials to prepare electrolytic water spray; the prepared electrolytic water spray or electrolytic water spray contains hydroxyl radicals (·OH). This electrolytic water spray or electrolytic water spray can be used for skin anti-inflammatory and antipruritic or killing microorganisms. Because hydroxyl radicals (·OH) have extremely high oxidation potential, hydroxyl radicals can react instantly with organic matter and oxidize it to generate stable substances that are harmless to the human body.

[0043] Example 1

[0044] Purpose: To characterize the nonspecific oxidizing capacity of an electrolyzed water spray or sparge.

[0045] Method: Use a pocket ozone colorimeter (iodine-based dissolved ozone meter) and a liquid mV value detector to measure the oxidizing capacity and oxidation potential (liquid mV) equivalent to dissolved "ozone" ppm in the following water samples (instantly produced electrolyzed water, hydrogen peroxide liquid, dissolved ozone water (water bubbling for 10 minutes), dissolved oxygen water (water bubbling for 10 minutes), dissolved hydrogen water (water bubbling for 10 minutes), dissolved hydrogen peroxide water, and instant produced negative ion water. Note: When sampling instant electrolyzed water, use the equipment to directly spray / inject it into the sampling bottle for sampling.

[0046] Results: Table 1-1, the oxidizing capacity and oxidation potential (liquid mV) results of the water sample equivalent to dissolved "ozone" ppm measured by a pocket ozone colorimeter (iodine quantitative dissolved ozone meter) and an oxidation potential (liquid mV) detector.

[0047]

[0048]

[0049] Note: The instant electrolytic water sprayer produces 23 ml of water in 10 seconds, and the instant electrolytic water atomizer produces 4 ml of water in 10 seconds. Where n=4 means 4 repetitions.

[0050] Table 1-2, the results of the detectable oxidation capacity and oxidation potential (liquid mV) equivalent to dissolved "ozone" ppm in water samples at 20℃ and 30℃ measured by a pocket ozone colorimeter (iodine-based dissolved ozone meter) and an oxidation potential (liquid mV) detector.

[0051]

[0052] Note: The electrolytic water sprayer produced by the sprayer produces 23 ml of water in 10 seconds, and the electrolytic water sprayer produced by the sprayer produces 4 ml of water in 10 seconds. Where n=4 means 4 times of repetition.

[0053] Discussion: N,N-diethyl-p-phenylenediamine (DPD) can be oxidized by a variety of oxidizing disinfectants including ozone to produce red. Since it does not have a specific reaction to ozone, it is not listed as a standard method for ozone detection in water in my country. This study uses this non-specific reaction dissolved ozone method to determine the oxidizing capacity of non-volatile equivalent to dissolved "ozone" ppm contained in a high oxidation potential electrolyzed water produced instantly.

[0054] Hydroxyl radicals are characteristic of advanced oxidation and have a short half-life, making them difficult to measure directly. In this study, high oxidation potential (ORP or oxidation-reduction potential) ≥1200mV and oxidation capacity were used to indirectly measure the advanced oxidation capacity of hydroxyl radicals.

[0055] Conclusion: 1. The Huankai ozone colorimeter (pocket ozone colorimeter) used in this study is a non-specific oxidizing capacity determination device in dissolved water and cannot be used for specific determination of dissolved ozone; 2. The electrolyzed water produced instantly using tap water and a new type of electrolytic water device (CN215308550U; https: / / www.deposon.com.cn; https: / / www.deposon.com) is a highly electron-deficient and highly oxidizing potential ≥1200mV electrolyzed water spray or water spray, and also contains an oxidizing capacity equivalent to 2.18ppm-2.72ppm of dissolved "ozone" (spray is 2.18ppm-2. 28ppm, 2.62ppm-2.72ppm for water spray), its high oxidation potential reflects the total oxidation capacity of all substances in the aqueous solution; its high oxidation potential (ORP) and oxidation capacity decay rapidly with time extension and temperature increase, and it has the advanced oxidation characteristics of hydroxyl radicals and oxygen radicals; 3. Because the oxidation capacity of this instant electrolyzed water spray or water spray is equivalent to the dissolved "ozone" 2.18ppm-2.72ppm is very small, the microbial killing and skin and mucous membrane anti-inflammatory and antipruritic effects of this instant electrolyzed water spray or water spray are mainly related to the high oxidation potential ≥1200mV, that is, related to the advanced oxidation of hydroxyl radicals produced therewith.

[0056] Example 2

[0057] Purpose: To instantly produce ozone gas release from electrolyzed water with a high oxidation potential of ≥1200mV and an oxidation capacity equivalent to about 2.23ppm of dissolved "ozone".

[0058] Method: This study used the following equipment and method to determine the ozone gas release of electrolyzed water with a high oxidation potential ≥1200mV and a detectable oxidation capacity equivalent to about 2.23ppm of dissolved "ozone": Same as Example 1.

[0059] Use an ozone gas detector, a negative oxygen ion detector, and the following liquids (electrolyzed water, hydrogen peroxide liquid, and negative ion water produced in this study) to spray and detect ozone gas at 10 cm outside the nozzle within 10 seconds.

[0060] Use an ozone gas detector, a negative oxygen ion detector and the following gases (pure oxygen, ozone and hydrogen) to detect "ozone gas" and negative oxygen ions within 10 seconds.

[0061] Results: Table 2-1, the measurement results of gaseous ozone and negative oxygen ions in electrolyzed water, hydrogen peroxide liquid and negative ion water spray and pure oxygen, ozone and hydrogen with high oxidation potential ≥1200mV and detectable oxidation capacity equivalent to about 2.23ppm of dissolved "ozone" produced in this study.

[0062]

[0063]

[0064] Wherein n=4 means 4 repetitions.

[0065] Discussion: The results suggest that the electrolytic water spray used in this study, which has a high oxidation potential of ≥1200mV and a detectable oxidation capacity equivalent to about 2.23ppm of dissolved "ozone", does not contain volatile dissolved ozone. Similarly, electrolytic water spray and pure water, saline or mineral water as electrolytic materials have the same effect.

[0066] Conclusion: The electrolytic water spray used in this study, which instantly produces a high oxidation potential ≥1200mV and a detectable oxidizing capacity equivalent to about 2.23ppm of dissolved "ozone", does not release detectable gaseous ozone ≥0.1mg / m3 into the surrounding environment. The electrolytic water spray and pure water, saline or mineral water as electrolytic materials have the same effect, are safe for users, and do not harm the user's environment, and meet national declaration and commercialization requirements.

[0067] Example 3

[0068] Purpose: To determine the composition and define the composition of an electrolyzed water spray or sparge.

[0069] Background: Oxidation-reduction potential (ORP) is used to reflect the macroscopic oxidizing properties of all substances in aqueous solution. A high oxidation potential indicates a high concentration of dissolved oxygen or oxidizing substances, that is, a high oxidation-reduction potential reflects the total oxidizing capacity of all substances in aqueous solution; early acidic oxidation potential water was produced by adding NaCl raw water to acidic electrolyzed water containing physical effects (high electron deficiency and high oxidation-reduction potential) and chemical effects (low concentrations of active chlorine and hypochlorous acid). In 2011, my country formulated GB28234 "Safety and Hygiene Standards for Acidic Oxidation Potential Water Generators", which stipulates the generation indicators of acidic oxidation potential water: pH value 2.0-3.0, effective chlorine acc60±10mg / l, and oxidation-reduction potential ≥1100mV. Studies have shown that the bactericidal and disinfecting function of acidic oxidation potential water is composed of its multi-factor unique structural components: one is the degree of electron deficiency (orp), the second is the effective chlorine concentration (acc), and the third is the acidity (pH value). These three indicators are in a proper proportion and maintain a dynamic balance, which will promote each other's covalent synergy. A single indicator will not have a bactericidal effect at a low concentration.

[0070] The present invention uses a water electrolysis device (CN215308550U; https: / / www.deposon.com.cn;

[0071] https: / / www.deposon.com), this type of electrolytic water device utilizes the wear-resistant, heat-resistant and conductive diamond (blue diamond) material coating of the electrolytic water device, as the diamond material of the anode conductive electrode, and uses it to produce electrolyzed water for disinfection of hard object surfaces. The inventor of the device determined that it is ozone water. The measurement results of the present invention (Example 1 and Example 2) show that the electrolyzed water produced by the device contains almost no dissolved ozone and does not release gaseous ozone, which is different from the measurement results and conclusions of the inventor of the device. After verification with the inventor of the device, it was found that the inventor of the device mistakenly used the iodine method for non-specific determination of the concentration of the oxidant to specifically determine the dissolved ozone, which was a mistake (Example 1 and Example 2). In addition, using chlorine-free electrolytic water raw water, the electrolyzed water produced by the device does not contain chlorine, which is different from the acidic electrolyzed water made by adding NaCl.

[0072] Methods: This study used the following equipment and methods to determine the composition of electrolytic water spray or water spray: Same as Example 1. This study used an electrolytic spray or water spray made instantly with tap water and a new electrolytic water device (https: / / www.deposon.com.cn; https: / / www.deposon.com), and the key electrode (anode) part of the new electrolytic water device involved the use of wear-resistant and heat-resistant conductive diamond materials (CN215308550U; https: / / www.deposon.com.cn; https: / / www.deposon.com). The water output of the two new electrolytic water devices was quite different. One was a handheld spray device with a water output of 4.2±0.1ml(g) within 10s, and the other was a handheld water spray device with a water output of 23±1ml(g) within 10s.

[0073] Results: Table 3-1. Detectable oxidation capacity and oxidation potential equivalent to dissolved "ozone" ppm of electrolyzed water produced instantly by the electrolysis water device in this study using tap water.

[0074]

[0075] Wherein n=4 means 4 repetitions.

[0076] Table 3-2. Detectable oxidation capacity and oxidation potential equivalent to dissolved "ozone" ppm of electrolyzed water produced instantly by the electrolysis water device in this study using physiological saline.

[0077]

[0078] Wherein n=4 means 4 repetitions.

[0079] Table 3-3. Detectable oxidation capacity and oxidation potential equivalent to dissolved "ozone" ppm of electrolyzed water produced instantly by the electrolysis water device in this study using mineral water.

[0080]

[0081]

[0082] Wherein n=4 means 4 repetitions.

[0083] Table 3-4. Detectable oxidation capacity and oxidation potential equivalent to dissolved "ozone" ppm of electrolyzed water produced instantly using pure water by the electrolysis device of this study.

[0084]

[0085] Wherein n=4 means 4 repetitions.

[0086] Table 3-5. Determination of dissolved O2 in electrolyzed water produced instantly using pure water by the electrolysis water device in this study.

[0087]

[0088] Note: The dissolved oxygen in pure water is about 9 mg / L. n=4 means 4 repetitions.

[0089] The results showed that there was no significant increase in the oxygen content of electrolyzed water produced using pure water.

[0090] Table 3-6. Determination of hydrogen peroxide in electrolyzed water produced instantly using pure water by the electrolysis water device in this study.

[0091]

[0092] Wherein n=4 means 4 repetitions.

[0093] Table 3-7. Determination of dissolved H2 in electrolyzed water produced instantly using pure water by the electrolysis water device in this study.

[0094]

[0095] Wherein n=4 means 4 repetitions.

[0096] discuss:

[0097] Hydroxyl free radicals are an important type of active oxygen. From the molecular formula, they are formed by the loss of an electron from a hydroxide (OH-). Hydroxyl free radicals have extremely strong electronic ability, that is, oxidizing ability. The anode of the water electrolysis device can directly or indirectly produce hydroxyl free radicals with strong oxidizing activity. The main feature of advanced oxidation is the oxidation reaction dominated by hydroxyl free radicals. The oxidation reaction caused by hydroxyl free radicals and oxygen free radicals has a short half-life, which decays rapidly with time extension and temperature increase.

[0098] Electrolyzed water produced instantly using tap water and a new type of electrolytic water device (CN215308550U; https: / / www.deposon.com.cn; https: / / www.deposon.com) is a highly electron-deficient and high oxidation potential (ORP or oxidation-reduction potential) ≥1200mV electrolyzed water spray and water spray, sprayed and pumped out to produce a detectable non-volatile oxidizing capacity equivalent to 2.18ppm-2.72ppm of dissolved ozone. This ≥1200mV oxidation-reduction potential reflects the total oxidizing capacity of all substances in the aqueous solution. The high oxidation potential (ORP) electrolyzed water has a high oxidation potential ≥1200mV and oxidizing capacity that decays rapidly with time and temperature increase, without residue, and has advanced oxidation characteristics of hydroxyl radicals and oxygen radicals. This high oxidation potential (ORP) electrolyzed water spray also releases negative air ions after being sprayed, but does not release detectable (>0.1mg / m3) gas ozone to the surrounding environment, meeting environmental safety requirements.

[0099] In this study, the electrolyzed water device and water spray or water jet were used to treat inflammatory diseases of the mucocutaneous mucosa, such as mild senile inguinal eczema, neurodermatitis and psoriasis, mild dermatitis, mild periodontitis, inflammatory wounds produced by skin laser surgery, and genital and scalp itching and to eliminate bacteria and viruses on the hands or skin. This study is an open-label, single-arm clinical study to compare the effects before and after treatment or an open-label, two-arm clinical study to compare the effects of two groups registered at www.clinicaltrials.com.

[0100] Conclusion: The present invention discloses a new application of electrolyzed water, wherein the electrolyzed water is an electrolyzed water spray or water jet instantaneously produced by using tap water or physiological saline or mineral water or pure water and an electrolyzed water device, and the high oxidation potential of ≥1200mV produced after spraying contains detectable non-volatile oxidizing capacity equivalent to 2.18ppm-2.72ppm of dissolved ozone, but does not release detectable gaseous ozone into the surrounding environment, and the high oxidation potential of ≥1200mV and the oxidizing capacity decay rapidly with time extension and temperature increase.

[0101] Example 4

[0102] Purpose: To provide a novel solution to the problem of reduced oxidation potential caused by long-term use of a new type of electrolytic water spray or water jet device.

[0103] Background: The present inventors found that when using the above water electrolysis device, the high oxidation potential of the electrolyzed water produced immediately decreased due to long-term use of the water electrolysis device.

[0104] Method: A liquid mV value detector is used to measure the electrolyzed water produced by the equipment immediately after long-term use. The equipment in the control group is not cleaned, and the equipment in the experimental group uses the cleaning method of the present invention to clean the electrolyzed water device every half a month. The specific cleaning method is to use an acidic solution with a pH of ≤ 3.5 (25% white vinegar solution or 0.001 mol / L hydrochloric acid solution or 0.1% sodium citrate solution), inject at least 50 ml into the water storage bottle for spraying. After cleaning, tap water or pure water is added again, and the oxidation potential of the electrolyzed water produced immediately by the equipment is measured using a liquid mV value detector.

[0105] Results: Table 4-1 Oxidation potential (liquid mV) The oxidation potential of 5 handheld spray machines using tap water of different water quality in different regions was measured by the detector for 6 months.

[0106]

[0107] Note: The results are obtained from three consecutive measurements.

[0108] Table 4-2 Oxidation potential (liquid mV) detector measured the oxidation potential of 5 handheld spray machines for 6 months, using tap water of different water quality in different regions and cleaning them every half a month.

[0109]

[0110] Note: The results are obtained from three consecutive measurements.

[0111] Conclusion: When the raw water is tap water, long-term use will cause the oxidation potential of the electrolytic water spray or water spray produced by the electrolytic water device to decrease to varying degrees. The oxidation potential of the electrolytic water spray or water spray produced by the electrolytic water device without cleaning continues to decrease, causing the use effect of the machine to deteriorate or even have no effect; the electrolytic water device is cleaned by the cleaning method of the present invention, and the oxidation potential of the electrolytic water spray or water spray produced by the electrolytic water device once every half a month is always ≥1200mV. The specific cleaning method is to use an acidic solution with a pH of ≤3.5 (this embodiment uses a 25% white vinegar solution, and a 0.001mol / L hydrochloric acid solution or a 0.1% sodium citrate solution can also be used to achieve a similar effect), and after 50ml is sprayed in a water storage bottle, the electrolytic water spray or water spray produced by the electrolytic water device can restore a high oxidation potential of ≥1200mV. In addition, after 6 months of use, it has been proven that the conductive diamond used in the electrolysis chamber of this water electrolysis device is extremely durable and will not corrode or fall off due to long-term use. It is much more durable than other metal water electrolysis devices on the market.

[0112] Example 5

[0113] Purpose: To provide a method for preventing, maintaining and correcting the gradual decline in the microbial killing effect of instant electrolyzed water after long-term use of a new type of electrolyzed water spray or water injection device.

[0114] Background: The applicant discovered that the microbial killing effect of the electrolyzed water produced instantly by the electrolyzed water device gradually decreased after long-term use of the electrolyzed water device.

[0115] Methods: This is an open-label, two-arm clinical study (registration address: www.clinicaltrials.com), with an electrolysis water device cleaning experimental group and an electrolysis water device non-cleaning control group. In the electrolysis water device cleaning experimental group, the treated patients included 10 healthy participants, 5 males and 5 females, with an average age of 32±8 years old; the electrolysis water device was cleaned using the cleaning method of the present invention, which was to use an acidic solution with a pH ≤ 3.5 (25% white vinegar solution or 0.001 mol / L hydrochloric acid solution or 0.1% sodium citrate solution) to inject at least 50 ml into a water storage bottle and clean it once every half a month; the treatment method was to use a sprayer that was cleaned once every half a month to spray the Escherichia coli applied to the hands in advance, spraying each hand for 6 seconds, and then using 4 seconds to collect the water sample flowing from the sprayed hands and apply it to the plate. In the electrolysis water device non-cleaning control group, the treated patients included 10 healthy participants, 5 males and 5 females, with an average age of 32±8 years old. The treatment method is to use an unrinsed sprayer to spray the E. coli bacteria that have been applied to the hands in advance, spray each hand for 6 seconds, and then use 4 seconds to collect the water sample flowing from the sprayed hands and smear the plate.

[0116] The detection of the number of residual E. coli in the collected water samples includes the following steps: 1 ml of the collected water sample is inoculated on the surface of the solid culture medium (the content in the total volume of the collected water sample is then calculated), and the total number of bacterial colonies formed is calculated in a 37°C incubator overnight, and the total number of bacterial colonies (CFU) is the total number of colonies formed by 1 ml of water sample on the surface of the solid culture medium. Note: This experimental methodology assumes that the bacteria inoculated on the hands of the two experimental groups are all washed off, and the number of colonies remaining on the hands after washing is negligible here due to the large number of inoculated colonies. After the experiment, the washed hands are used to print the film on the large plate culture medium, and the colonies (unstained and stained) are calculated after overnight incubation at 37°C, which supports the reliability of this experimental method.

[0117] Results: Table 5-1 The number of residual E. coli in the collected water samples

[0118] Electrolyzed water device cleaning group Electrolyzed water device without cleaning group 0 months 0±0 0±0 1 month 0±0 30±6 2 months 0±0 80±16 4 months 0±0 120±24 6 months 0±0 130±36

[0119] Note: The results are obtained from three consecutive measurements.

[0120] Conclusion: Long-term use of this electrolytic water device will lead to a gradual decline in the microbial killing effect of the electrolytic water produced immediately. The use of an acidic solution with a pH of ≤ 3.5 (25% white vinegar solution, 0.001 mol / L hydrochloric acid solution and 0.1% sodium citrate solution have similar effects) can prevent and correct this decline. Because the microbial killing effect of the electrolytic water produced by the electrolytic water device is not only related to the placement time of the electrolytic water device, but also to the frequency of use of the electrolytic water device, and even to the selection of the raw materials for electrolytic water. Therefore, the oxidation potential value (absolute value) actually detected by the present invention is compared with the preset oxidation potential warning value as a reference for whether the electrolytic water device needs to be cleaned, which is more practical.

[0121] Example 6

[0122] Objective: To provide a method for preventing, maintaining and correcting the gradual decline in the anti-inflammatory and antipruritic effect of instant electrolyzed water after long-term use of a new type of electrolyzed water spray or water jet device.

[0123] Background: When using the above electrolytic water device, the inventors found that long-term use of the electrolytic water device causes the skin anti-inflammatory and antipruritic effects of the electrolytic water produced instantly to gradually decrease.

[0124] Methods: This is an open-label, single-arm, and pre- and post-treatment comparative study. The treated patients included 14 patients with scalp discomfort or itching, 8 males, 6 females, with an average age of 42±18 years. Among them, the experimental group had 7 people, 4 males, and 3 females. The treatment method was to spray the itchy parts of the scalp with an electrolyzed water spray device until 1 / 2 bottle of water (250 ml) of the device volume was sprayed, once a day, and continued to use for 6 months, and the electrolyzed water device was cleaned once every half a month using the cleaning method of the present invention, specifically using an acidic solution with pH ≤ 3.5 (this embodiment uses 25% white vinegar solution, 0.001 mol / L hydrochloric acid solution or 0.1% sodium citrate solution for similar effects) to rinse the electrolyzed water device once; the control group had 7 people, 4 males, and 3 females, and sprayed the itchy parts of the scalp with an electrolyzed water spray device until 1 / 2 bottle of water (250 ml) of the device volume was sprayed, once a day, and continued to use for 6 months, without rinsing the electrolyzed water spray device. After the treatment, the researchers visited the patients and recorded the degree of scalp discomfort or itching on the third day and after 1, 3, and 6 months of treatment, which was recorded as the Discomfort and Itch Scale. This Discomfort and Itch Scale is modified based on the National Pain Rating Scale (NPRS), which is the most commonly used pain assessment scale in clinical practice and a means for doctors to unilaterally assess the intensity of pain in patients. The researchers used numbers 0-10 to represent the patient's self-rating of the degree of scalp discomfort or itching, with "0" indicating no discomfort or itching and "10" indicating the worst discomfort or itching.

[0125] Results: Table 6-1 Scalp Discomfort or Itch Scale

[0126]

[0127]

[0128] Note: The measurement results are from 7 volunteers in each group.

[0129] Conclusion: Long-term use of this electrolyzed water device will lead to a gradual decrease in the anti-inflammatory and antipruritic effect of the instantly produced electrolyzed water on the skin. The use of an acidic solution with a pH ≤ 3.5 (25% white vinegar solution, 0.001 mol / L hydrochloric acid solution and 0.1% sodium citrate solution have similar effects) can prevent and correct this decrease.

[0130] Example 7

[0131] Objective: The biological effects of electrolyzed water devices in killing microorganisms and preventing inflammation and relieving itching on the skin are mainly derived from the high oxidation potential of the instantly produced electrolyzed water, which has nothing to do with its detectable total oxidation capacity equivalent to dissolved "ozone".

[0132] Background: The applicant found that the long-term use of the above water electrolysis device would not cause a decrease in its total oxidation capacity equivalent to dissolved "ozone".

[0133] Method: A pocket ozone colorimeter (iodine-based dissolved ozone meter) was used to measure the electrolyzed water produced by the equipment after long-term use. The equipment in the control group was not cleaned, and the equipment in the experimental group used the cleaning method of the present invention to clean the electrolyzed water device once every half a month. The specific cleaning method is to use an acidic solution with a pH of ≤ 3.5 (25% white vinegar solution or 0.001 mol / L hydrochloric acid solution or 0.1% sodium citrate solution), inject it into a water storage bottle and spray at least 50 ml. After cleaning, add tap water or pure water again, and use a pocket ozone colorimeter (iodine-based dissolved ozone meter) to measure the oxidation capacity equivalent to dissolved "ozone" ppm in the electrolyzed water sample produced by the equipment. Note: When sampling the electrolyzed water produced instantly, use the equipment to directly spray / inject it into the sampling bottle for sampling.

[0134] Results: Table 7-1 The oxidizing capacity equivalent to dissolved "ozone" ppm in the electrolyzed water samples produced immediately before and after machine cleaning was measured by a pocket ozone colorimeter (iodine-based dissolved ozone meter).

[0135]

[0136] Note: The results are obtained from three consecutive measurements.

[0137] Conclusion: Long-term use of this electrolytic water device will not cause a decrease in its total oxidizing capacity equivalent to dissolved "ozone". According to Examples 4, 5, and 6, it can be inferred that the biological effects of this electrolytic water device in killing microorganisms and relieving skin inflammation and itching mainly come from the high oxidation potential of the electrolyzed water it instantly produces, which has little to do with its total oxidizing capacity equivalent to dissolved "ozone". The component that produces its function may be hydroxyl free radicals, which have an extremely short half-life and are difficult to detect.

[0138] Example 8

[0139] Purpose: To investigate the relationship between the high oxidation potential and the total oxidation capacity equivalent to dissolved "ozone" of a novel electrolytic water spray or water injection device and the temperature of the raw water used, as well as the decay rate of the high oxidation potential and the total oxidation capacity equivalent to dissolved "ozone" generated by the device.

[0140] Background: The inventors found that the biological function of the electrolytic water device is affected by the temperature of the raw water when using the electrolytic water device. As the temperature of the raw water increases, the biological function of the electrolytic water decreases or even disappears. The high oxidation potential of the electrolytic water produced by the electrolytic water decays very quickly.

[0141] Method: The oxidation potential of the electrolyzed water produced by the electrolyzed water device using raw water at different temperatures and the total oxidation capacity equivalent to dissolved "ozone" were measured using a liquid mV value detector and a pocket ozone colorimeter (iodine-based dissolved ozone meter); when the liquid mV value detector was used for measurement, the oxidation potential of the device was measured at 4 cm, 8 cm, and 12 cm from the probe of the liquid mV value detector, and different measurement distances were used to verify the decay rate of the high oxidation potential of the electrolyzed water. When the pocket ozone colorimeter (iodine-based dissolved ozone meter) was used for measurement, the total oxidation capacity equivalent to dissolved "ozone" was measured at 24°C when the device was 0 cm, 4 cm, 8 cm, and 12 cm away from the sampling bottle. Note: When sampling the electrolyzed water produced in real time, the device was directly sprayed / injected into the sampling bottle at 0 cm, 4 cm, 8 cm, and 12 cm; and the introduction tube was inserted into the sampling bottle at 0 cm, 4 cm, 8 cm, and 12 cm.

[0142] Furthermore, a liquid mV value detector was used to measure the oxidation potential of the raw water at the critical temperature at which the high oxidation potential began to decrease in the water electrolysis device after being left for 20s, 30s, and 40s.

[0143] Results: Table 8-1 Liquid mV value detector measured the oxidation potential of raw water at different temperatures at different measurement distances

[0144]

[0145]

[0146] Table 8-2 Pocket ozone colorimeter (iodine method dissolved ozone meter) uses raw water of different temperatures to spray / inject directly into the sampling bottle at different distances to measure the total oxidizing capacity equivalent to dissolved "ozone"

[0147]

[0148] Wherein n=4 means 4 repetitions.

[0149] Table 8-3 Pocket ozone colorimeter (iodine method dissolved ozone meter) uses different temperature raw water at different distances to insert the introduction tube into the sampling bottle to measure the total oxidizing capacity equivalent to dissolved "ozone"

[0150]

[0151] Wherein n=4 means 4 repetitions.

[0152] Table 8-4 Liquid mV value detector to measure the oxidation potential of electrolyzed water produced by electrolyzed water equipment using 24℃ raw water after being placed for 20s, 30s, and 40s

[0153] time 20s 30s 40s Oxidation potential (mV) 506±25 409±22 354±23

[0154] Conclusion: The electrolyzed water produced by this electrolytic water device using raw water below 18°C ​​has a high oxidation potential of ≥1200mV measured at different distances. It can be inferred that at this temperature, the oxidation potential of the electrolytic water produced at 4cm is much greater than the upper limit of the machine's measurement of 1200mV, and the actual oxidation potential can be close to the oxidation potential of hydroxyl radicals, 2400mV. It is inferred that the main component of the electrolytic water spray produced by the equipment is hydroxyl radicals. And when the raw water is greater than 18°C, the high oxidation potential at 4cm and 12cm is very different, which further illustrates that the electrolytic water produced in real time decays very quickly. In addition, it is also explained that when using the electrolytic water device of the present invention for spraying, it is best to control the distance between the nozzle and the target position within 12cm, so that the sprayed liquid has a higher oxidation potential when it contacts the target position, so as to achieve a better disinfection effect; especially in the summer when the temperature is high, it even needs to be controlled within 4cm to achieve a better disinfection effect. In addition, it can be seen from the fact that the oxidation potential of the electrolyzed water made from 24°C raw water drops to 506±25 when placed for 20s (the oxidation potential is ≥1200 at 0s) that the spraying distance and time will affect the determination of the oxidation potential. Therefore, the present invention installs the probe near the cathode and / or anode of the water electrolysis device, which can more accurately determine the actual usage status of the cathode and / or anode.

[0155] The total oxidation capacity equivalent to dissolved "ozone" measured at 0cm, 4cm, 8cm, and 12cm has no significant difference except for spraying directly into the sampling bottle mouth. It is judged that the distance changes the sampling method of the sampling bottle from atomization to liquid flowing down the wall of the sampling bottle; the difference between spraying directly and spraying with an introduction tube at 0cm can also confirm this conclusion. In other words, distance will not cause changes in the total oxidation capacity of the electrolyzed water produced instantly by this electrolysis water device. And this high oxidation potential water will be completely reduced to water within 40s, and it is very safe to use, as long as it is not used towards the eyes.

[0156] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A method for cleaning a water electrolysis device, characterized in that: At least the anode of the water electrolysis device adopts a conductive diamond electrode. The water electrolysis device is used to produce an electrolytic water spray with a high oxidation potential. If it is detected that the absolute value of the oxidation potential value of the electrolytic water spray is less than a preset oxidation potential warning value, an acidic aqueous solution is used to clean the electrode surface of the water electrolysis device.

2. The cleaning method according to claim 1, characterized in that: The acidic aqueous solution includes at least one of acetic acid, hydrochloric acid and sodium citrate; and / or, The pH of the acidic aqueous solution is ≤3.

5.

3. The cleaning method according to claim 1, characterized in that: The oxidation potential value of the electrolyzed water spray is detected at a position close to the anode and / or cathode of the electrolysis device.

4. The cleaning method according to claim 1, characterized in that: The method of using an acidic aqueous solution to clean the electrode surface of the water electrolysis device comprises placing the acidic aqueous solution into the water electrolysis device, and performing acid washing after the anode and cathode of the water electrolysis device are swapped.

5. The cleaning method according to claim 4, characterized in that: After the cleaning reaches the preset target, the acidic aqueous solution is discarded, and the water electrolysis device is rinsed with tap water or pure water.

6. The cleaning method according to claim 5, characterized in that: The cleaning achieves a preset target, including that at least one of the usage of the acidic aqueous solution, the cleaning time, or the oxidation potential value at the cathode / anode reaches a preset requirement.

7. The cleaning method according to claim 1, characterized in that: The raw water used to prepare the electrolyzed water spray is ordinary tap water, pure water or weak acid solution.

8. The cleaning method according to claim 1, characterized in that: The electrolyzed water spray contains at least hydroxyl radicals.

9. The cleaning method according to claim 1, characterized in that: The electrolyzed water spray is used for skin anti-inflammatory and antipruritic purposes or for killing microorganisms; and / or the distance between the electrolyzed water spray and the target spraying object is no more than 12 cm.

10. A water electrolysis device, characterized in that: At least the anode of the water electrolysis device adopts a conductive diamond electrode. The water electrolysis device comprises a control module. The control module cleans the water electrolysis device according to the cleaning method according to any one of claims 1-9.

11. The water electrolysis device according to claim 10, characterized in that: The control module comprises: An oxidation potential detection unit, the oxidation potential detection unit is arranged near the anode and / or cathode of the water electrolysis device, and the oxidation potential detection unit is used to detect the oxidation potential value at the anode and / or cathode; a communication unit, used for transmitting the oxidation potential value at the anode and / or cathode to a control unit; The control unit reminds the user to clean the electrolytic water device if it detects that the absolute value of the oxidation potential value of the electrolytic water spray is less than a preset oxidation potential warning value.

12. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the cleaning method according to any one of claims 1 to 9 is implemented.

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